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Finding the Fourth Proportional to 331,453.53, 457,389.59 and 188,194.77

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Solution

The fourth proportional to 331,453.53, 457,389.59 and 188,194.77 is: 259,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,453.53 : 457,389.59 = 188,194.77 : x
  2. Step 2: Convert to fraction form
    331,453.53/457,389.59 = 188,194.77/x
  3. Step 3: Cross multiply
    331,453.53x = 457,389.59 × 188,194.77
  4. Step 4: Simplify right side
    331,453.53x = 86,078,327,749.47
  5. Step 5: Solve for x
    x = 86,078,327,749.47/331,453.53
  6. Step 6: Final answer
    x = 259,699.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.